Update README.md

satoryu · web-flow · commit 471eb150e69e · 2022-03-13T13:19:50.000+09:00
diff --git a/README.md b/README.md
@@ -11,7 +11,7 @@ A ruby library/gem for interacting with `.docx` files. currently capabilities in
 
 ### Prerequisites
 
-- Ruby 2.5 or later
+- Ruby 2.6 or later
 
 ### Install
 
